DT pairing (P0, P6, P5 levels)

DT pairing is one of the three classic paired installation methods for angular contact ball bearings, with the full name Double Tandem (series connection) and code DT. The core is to install two angular contact ball bearings of the same specification in the same direction (outer ring wide/narrow edge in the same direction, contact angle centerline in the same line), forming a unidirectional load superposition layout, suitable for radial load+ultra large unidirectional axial load conditions. It is the core choice for heavy-duty shaft systems that need to withstand unidirectional large axial forces, such as rolling mills, cranes, hydraulic equipment, etc. It can be adapted to the full series of angular contact ball bearings such as 7000C/AC/B and AC7000 all ceramic types.

Model Basic Dimensions Basic rated dynamic load WeightType
Inner diameter Outer diameter Thickness Dynamic load Static load
[mm] [mm] [mm] (kN) (kN) （kg）
7407ATNDT尼龙保持器 35 100 25 98.2 73.9 1.9 DT pairing (P0, P6, P5 levels)
7407BTNDT尼龙保持器 35 100 25 91.3 68.6 1.9 DT pairing (P0, P6, P5 levels)
7808BTNDT尼龙保持器 40 52 7 12.6 11.7 0.058 DT pairing (P0, P6, P5 levels)
7908ACTNDT尼龙保持器 40 62 12 23.3 22.3 0.22 DT pairing (P0, P6, P5 levels)
7008ATNDT尼龙保持器 40 68 15 31.5 31 0.38 DT pairing (P0, P6, P5 levels)
7008BTNDT尼龙保持器 40 68 15 27.4 26.4 0.42 DT pairing (P0, P6, P5 levels)
7208ATNDT尼龙保持器 40 80 18 57.5 50.5 0.75 DT pairing (P0, P6, P5 levels)
7208BTNDT尼龙保持器 40 80 18 52 46 0.766 DT pairing (P0, P6, P5 levels)
7308CTNDT尼龙保持器 40 90 23 75.3 58.8 1.314 DT pairing (P0, P6, P5 levels)
7308ATNDT尼龙保持器 40 90 23 79.5 66 1.266 DT pairing (P0, P6, P5 levels)
7308BTNDT尼龙保持器 40 90 23 73 60.5 1.296 DT pairing (P0, P6, P5 levels)
7408ATNDT尼龙保持器 40 110 27 114 87.1 2.46 DT pairing (P0, P6, P5 levels)
7408BTNDT尼龙保持器 40 110 27 105 80.8 2.46 DT pairing (P0, P6, P5 levels)
7809BTNDT尼龙保持器 45 58 7 13.1 13.1 0.066 DT pairing (P0, P6, P5 levels)
7909ACTNDT尼龙保持器 45 68 12 24.6 25.4 0.26 DT pairing (P0, P6, P5 levels)
7009ATNDT尼龙保持器 45 75 16 37.5 37.5 0.5 DT pairing (P0, P6, P5 levels)
7009BTNDT尼龙保持器 45 75 16 32.5 32 0.52 DT pairing (P0, P6, P5 levels)
7209ATNDT尼龙保持器 45 85 19 64.5 57.5 0.822 DT pairing (P0, P6, P5 levels)
7209BTNDT尼龙保持器 45 85 19 58.5 52.5 0.842 DT pairing (P0, P6, P5 levels)
7309CTNDT尼龙保持器 45 100 25 96.1 79.5 1.75 DT pairing (P0, P6, P5 levels)